US3862434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Christmas tree lighting control
Assignee: DAVIS GEORGE B JUN
•
Filing: 1973-12-06
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Granted: 1975-01-21
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Expires: 1993-12-06
Abstract
Abstract A control for Christmas tree lighting wherein a plurality of varying light intensity effects are produced and in a predetermined sequential order throughout all the lighting strings of a tree to result in a twinkling or shimmering effect heretofore unobtainable with any form or combination of flasher.
Inventors
- 👤 Jr George B Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:28
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/004; H01H43/00; H05; H05B; H05B47/00; H05B47/10; H05B47/155
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
68 words
A control for Christmas tree lighting including in combination a power supply having two or more differing dutycycle outputs, an electrical outlet electrically connected to the lowest duty-cycle output of said power supply for connecting thereto one or more strings of Christmas tree lights, means movable for electrically connecting in common with the said lowest duty-cycle output the other outputs of said power supply in predetermined sequencial order.
Claim 2
Dependent Claim
68 words
A control for Christmas tree lighting including in combination a power supply having two or more differing dutycycle outputs, an electrical outlet electrically connected to the lowest duty-cycle output of said power supply for connecting thereto one or more strings of Christmas tree lights, means movable for electrically connecting in common with the said lowest duty-cycle output the other outputs of said power supply in predetermined sequencial order.
Claim 3
Dependent Claim
20 words
A Christmas tree lighting control as claimed in claim 1 wherein the duty-cycle to said outputs may be selectively varied.
Claim 4
Dependent Claim
38 words
A Christmas tree lighting control as claimed in claim 1 wherein the duty-cycle of said lowest output will not reduce the light intensity output of said Christmas tree lighting string by greater than 80 percent from full brightness.
Claim 5
Dependent Claim
23 words
A Christmas tree lighting control as claimed in claim 1 wherein electrical circuit between said power supply and said outlet is never interrupted.
Claim 6
Dependent Claim
44 words
A Christmas tree lighting control as claimed in claim 1 wherein said means movable is in the form of a motor driven cam operable to intermittently close, in predetermined timed sequence, contact members respectively connected to the differing duty-cycle outputs of said power supply.
Claim 7
Dependent Claim
64 words
A control for Christmas tree lighting including in combination a power supply having two or more differing duty-cycle outputs, an electrical outlet electrically connected to the lowest duty-cycle output of said power supply for connecting therewith one or more strings of Christmas tree lights, means movable for intermittently connecting in common with the said lowest duty-cycle output the other outputs of said power supply.
Claim 8
Dependent Claim
64 words
A control for Christmas tree lighting including in combination a power supply having two or more differing duty-cycle outputs, an electrical outlet electrically connected to the lowest duty-cycle output of said power supply for connecting therewith one or more strings of Christmas tree lights, means movable for intermittently connecting in common with the said lowest duty-cycle output the other outputs of said power supply.
Claim 9
Dependent Claim
51 words
A control for Christmas tree lighting as claimed in claim 6 wherein the said movable means is in the form of a motor driven cam operative to intermittently move together, into and out of common electrical engagement, spring contact members respectively connectEd to the differing duty-cycle outputs of said power supply.
Claim 10
Dependent Claim
27 words
A control as claimed in claim 7 wherein the said spring contact members are moved together in the order required to increase the duty-cycle to said outlet.
Claim 11
Dependent Claim
20 words
A control as claimed in claim 6 wherein the circuit between said power supply and said outlet is never interrupted.
Claim 12
Dependent Claim
28 words
A control as claimed in claim 6 wherein the light intensity to said lighting string is never deminished by said control by greater than 80% from full brightness.
References Cited (Backward Citations)
US3793531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |